Looks very similar to a Tom Yost design...
With all that PVC, if it's 1/2" plumbing probably well over 40 lbs. If it's 3/4" likely closer to 60 lbs.
Msg the seller and ask, if it peaks your interest.

No, I think it's pretty ugly (although I admire the engineering involved), and I assumed it was heavy to boot, since I've worked with pvc. I just was amazed that there was a pvc kayak design out there! I probably shouldn't have been...there are pvc plans for just about everything you can think of.

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